JPS58186411A - Filter apparatus for separating cleaning member from cooling water stream after tub heat exchanger - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention consists of a generally cylindrical casing through which the cooling water flow flows, separating filters arranged therein and each pivotable about a pivot axis, an upwardly open collection A container and a cleaning member outlet are provided, the collection container having a collection container end wall extending orthogonally to the separation filter, a converging container bottom wall and a collection container side wall, the collection container side walls being It is configured as a filter wall and leads to the sweeper outlet, while at least one converging vessel end wall is arranged obliquely to the direction of flow, with the separating filter also being connected to the filter. The downstream end of the shading filter is swingable between a hopper position and a cleaning position, and at least in the filter hopper position the downstream end of the shading filter surrounds the collection vessel end wall between or terminates at the level of the collection vessel end wall. The present invention relates to a filter device for separating cleaning elements from a cooling water stream after a tube heat exchanger, in particular a power plant heat exchanger. The cleaning element outlet is then followed by a conduit for discharging or returning the cleaning element. In such filter devices, the cleaning of the separating filter located in the filter hopper position and used as a separating filter for separating the cleaning element from the cooling water flow is carried out by swinging the separating filter into the cleaning position. At the cleaning position, the cooling water flow flows through the filter arrangement in the opposite direction to the flow at the filter hopper position and performs cleaning. The separation filter is constructed in such a way that, although dirt may settle thereon, the cleaning member does not accumulate on the separation filter at least to the extent that it becomes an obstruction. Therefore, the cleaning member will not be lost during cleaning of the separation filter spindle. However, on the other hand, the inside of the collection container also has to be cleaned.
- In the known filter device as mentioned at the outset (EP 26 261), cleaning of the collection container takes place by opening the collection container when the separating filter is swung into the cleaning position. In order to open the collection container, at least one collection container side wall is connected to the associated separation filter and is pivotable together with the collection container bottom when the separation filter is swung into the cleaning position. The collection container in a filter device is a relatively small collection. Not only dirt accumulates between the side walls, but also the cleaning elements accumulate here. This is especially true when the collection container side walls have filter rods. However, this is the case if the cleaning element, which is mostly designed as a cleaning ball, has to flow into the cleaning element outlet along the oblique collection container end wall transversely to the filter rod. Cleaning the collection container results in the loss of accumulated cleaning material, and since a considerable amount of dirt also accumulates, this cleaning must be done very frequently.

The object of the present invention is to prevent stains from becoming irresistible.
It is also an object of the present invention to improve a filter device of the type mentioned at the outset, so that cleaning elements no longer accumulate.

In order to solve this problem, the present invention shows the following. That is, the collection container has guide elements in the region of the obliquely extending end walls of the collection container, which guide elements are narrower than the spacing of the side walls of the collection container and around which the cleaning element can flow; The guide member also faces toward the cleaning member outlet.

According to an advantageous embodiment of the invention, the guide element is designed as a strip and is arranged approximately centrally between the side walls of the collection container. The width of the guide member may increase towards the cleaning member outlet. Diagonal trap extended 2
According to the invention, in an embodiment with two collection container end walls, a guide element is arranged in front of each collection container end wall, and both guide elements merge into one in the area of the cleaning element outlet. There is. When operating with guide elements designed as strips, these guide elements are generally arranged equidistantly with respect to the associated end wall of the collection container.

The advantages obtained are as follows. This means that in the filter device according to the invention, much less dirt accumulates on the side walls of the collection container, which are designed as filter walls, than in the known embodiments.

Accumulation of cleaning elements can be completely prevented.

Embodiments of the present invention will be described below with reference to the drawings.

The illustrated filter device is used for separating a cleaning element 1 from a cooling water stream 2 after a tube heat exchanger, in particular a power plant heat exchanger. The basic configuration of the filter device includes the following: A generally cylindrical casing 3 through which a cooling water flow flows, a separating filter 5 arranged therein and pivotable in each case about a horizontal pivot axis 4, and an upwardly open collection container 6. has a collection container end wall 7 extending perpendicularly to the separation filter 5, a collection container bottom wall 8 and, in addition, collection container side walls 9, 10, 11, which are configured as filter walls. There is.

The separation filter 5 is swingable to the filter hopper position shown by the solid line in the figure. However, the separating filter can also be pivoted into the cleaning position shown in broken lines in FIG. The downstream end 12 of the separation filter, at least at the filter hopper location, surrounds the collection vessel end wall 7 therebetween as shown. However, the separating filter can also end at the height of the collecting container end width 7, with the collecting container side wall 9
, 1.0.11 are fixedly arranged in the collection container 6.

In this embodiment, the collection container side wall 9 and the collection container bottom wall 8 are
It is connected to an attached separation filter 5 along its entire length. The opposite side walls of the collection vessel are, as it were, in two parts 10,
11 , one part 10 is fixedly arranged and the other part 11 is an extension of the separation filter 5 .

The extension of the separation filter 5 also forms the collection vessel side wall 9 mentioned at the outset, and both extensions 9°11 are 13
It continues to the original separation filter 5 via a bent portion at the point.

As can be seen in particular from a comparative consideration of FIGS. 1, 3 and 4, the convergence container 6 in this embodiment has a guide member 14 in the region of the obliquely extending collection container end wall 7; , these guide members are narrower than the spacing A of the collection container side walls 9, 10, 11. The cleaning member 1 can flow around the guide member 14 . The guide member faces towards the cleaning member outlet 15. In this embodiment and according to an advantageous embodiment of the invention, the guide member 14 is designed as a band and is arranged approximately centrally between the side walls 9 , 10 , 11 of the collection container. The width of the guide member is the same as cleaning member 1.
It is expanding towards 5. In this example an embodiment is used with two collection container end walls 7 inclined with respect to the vertical, so that both guide elements 14 of these collection container end walls 7
are grouped together in the area of the cleaning element outlet 15.

These guide elements also extend equidistantly from the associated end wall 7 of the collection container.

6 and 7 show other advantageous shapes and cross-sections of the guide element 14. FIGS.

[Brief explanation of drawings]

1 is an axial sectional view parallel to the separation filter of a filter device according to the invention; FIG. 2 is an axial sectional view corresponding to FIG. 1 perpendicular to the separation filter;
The figure is a sectional view of the device shown in FIG. 1 in the AA direction, FIG. 4 is a sectional view of the device in FIG. 1 in the BB direction, and FIG. 5 is a sectional view of the device in FIG. 1 in the C-C direction. 6 and 7 are views corresponding to FIG. 3 showing another embodiment of the guide member in the filter device according to the present invention. ■... Cleaning member, 2... Cooling water flow, 3... Casing, 4... Swing axis, 5... Separation filter, 6...
...Collection container, 14...Guiding member, 15...Cleaning member outlet Patent applicant Tagurotsuge, Gesellschaft, Mitsuto, Penülenktel, Hafrang's representative patent attorney Thiroji Tashiro

Claims (5)

[Claims] (1) A generally cylindrical casing through which the cooling water flow flows, separating filters arranged therein and each pivotable about a pivot axis, a collection container open to the top;
and a cleaning element outlet, wherein the collection container has a collection container end wall extending perpendicularly to the separation filter, a collection container bottom wall and a collection container side wall, the collection container side walls being the filter wall. and is connected to the cleaning element outlet, while the one end wall of the collecting container is arranged obliquely to the direction of flow, with a further separating filter located in the filter hopper position. and a cleaning position, and at least in the filter hopper position the downstream end of the separation filter surrounds or terminates at the level of the collection vessel end wall. In a filter device for separating a cleaning element from a cooling water stream after a heat exchanger, in particular a power plant heat exchanger, the collection vessel (6) has an obliquely extending collection vessel end wall (7).
has a guide member (14) in the area of , which guide member is narrower than the spacing (A) of the collection container side walls (9, 10, 11)
and around this guide member the cleaning member (1) can flow, and the guide member (14) is connected to the cleaning member outlet (1).
5) A filter device for separating the cleaning element from the cooling water stream after the tube heat exchanger, characterized in that it is oriented towards. (2) The filter according to claim 1, wherein the guide element (14) is configured as a strip and is arranged approximately centrally between the side walls (g, 10.11) of the collection container. Device. (3) The width of the guide member (14) is the same as that of the cleaning member outlet (15).
3. A filter device according to claim 1 or claim 2, wherein the filter device is widened towards. (4) In embodiments with two obliquely extending collection container end walls, a guide member (14) is arranged in front of each collection container end wall (7) and both guide members (1
4) are combined in the area of the cleaning element outlet (15). (5) Filter arrangement according to one of the claims 1 to 4, characterized in that the guide elements (14) are arranged equidistantly with respect to the collection container end wall (7).